Template Synthesis of the Iron(III) Complex with the Ligands Based on Acylpyrazolonepyridines

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Resumo

The reaction of new bidentate ligand, 1-(5-hydroxy-1-methyl-3-(pyridin-2-yl)-1Н-pyrazol-4-yl)ethan-1-one (L), with iron(III) chloride affords the mononuclear iron(III) complex FeL₂Cl₃, which is characterized by XRD (CIF file CCDC no. 2309481). The intramolecular hydrogen bond between the protonated pyridyl and acetyl groups in ligand L, which exists in the crystal as a zwitterion, provides the formation of rarely met iron complexes in which the β-diketonate fragment coordinates via the η1 mode. A similar coordination mode along with a possibility of a more favorable η2 coordination provides new possibilities for the design of heteropolynuclear compounds of various structures used in the fabrication of molecular devices of data storage and processing.

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Sobre autores

D. Strunin

Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences; Moscow State University

Email: igornikovskiy@mail.ru
Rússia, Moscow; Moscow

I. Nikovskii

Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences

Autor responsável pela correspondência
Email: igornikovskiy@mail.ru
Rússia, Moscow

A. Dan´shina

Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences; Moscow Institute of Physics and Technology (National Research University)

Email: igornikovskiy@mail.ru
Rússia, Moscow; Dolgoprudnyi, Moscow oblast

Yu. Nelyubina

Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences

Email: igornikovskiy@mail.ru
Rússia, Moscow

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7. Fig. 1. General view of the FeL₂Cl₃ complex with atoms represented by thermal vibration ellipsoids (p = 50%). The complex occupies a special position in the crystal — a second-order axis passing through the iron(III) ion and the chloride anion Cl(1) coordinated to it. The minor disorder component with a population of <3% is not shown, and the numbering is given only for symmetrically independent atoms.

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